Topiramate EP Impurity B CAS 876403-98-4
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 876403-98-4 |
| Molecular Formula | C17H30N2O9S |
| Molecular Weight | 438.49 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Topiramate EP Impurity B (CAS 876403-98-4) is a pharmacopoeial impurity standards certified reference material from CATO. Molecular formula: C17H30N2O9S. Molecular weight: 438.49 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C17H30N2O9S |
| Molecular Weight | 438.49 g/mol |
| Purity | >95% |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Topiramate Standards
- Topiramate Impurity 33 (CAS CATO-C4X-176833)
- Topiramate Impurity 29 (CAS 53209-14-6)
- Topiramate Impurity 31 (CAS CATO-C4X-176831)
- Topiramate Impurity 11 (CAS CATO-C4X-176811)
- Topiramate Impurity 22 (CAS CATO-C4X-176822)
- Topiramate Impurity 32 (CAS CATO-C4X-176832)
- Topiramate Impurity 41 (CAS CATO-C4X-176841)
- Topiramate Impurity 28 (CAS 53209-16-8)
Recommended Standards
- 5-Methoxy-4-[(4-methoxyphenyl)sulfanyl]-2-({[3-(trifluoromethyl)phenyl]methyl}sulfanyl)pyrimidine (CAS 339276-05-0)
- 2-(Phenylimino)-N-(5-(m-tolyl)-1,3,4-thiadiazol-2-yl)-2H-chromene-3-carboxamide (CAS 1261027-42-2)
- 3-[(2-Fluorophenyl)methyl]-16,19-dimethoxy-3,21-diazapentacyclo[11.8.0.0^{2,10}.0^{4,9}.0^{15,20}]henicosa-1(21),2(10),4(9),5,7,13,15(20),16,18-nonaene (CAS 860787-08-2)
- Cefpodoxime Proxetil EP Impurity A (CAS 80210-62-4)
- Hydrochlorothiazide Impurity 19 (CAS 85119-88-6)
- 3-((4-Chlorophenyl)amino)-1-(naphthalen-2-yl)propan-1-one (CAS 882748-34-7)
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- Methyl 6-cyclopropyl-4-(hydroxymethyl)picolinate (CAS 2847878-18-4)
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Why CATO?
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